1. Explain the noun with short answer for the following: (10 pts) (a) E/Z isomer (b) Zaitsev's rule (c) Bredt's rule (d)
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1. Explain the noun with short answer for the following: (10 pts) (a) E/Z isomer (b) Zaitsev's rule (c) Bredt's rule (d)
3. Predict the products of the following reactions, showing both regiochemistry and stereochemistry where appropriate: (6 pts) (a) NaSH DMSO (b) NaOH ESOH (c) KO(CH₂) EIOH 4. Propose a mechanism for following transformation. (4 pts) OH OH H₂O' H₂C 2
5 Please tell the two products from following reaction, draw the structures of (B) and (C). Draw the mechanism for conversion of (B) to (C). (10 pts) Major Minor Br CH₂CN (A) (B) (C) 6. Please describe the characteristics of the S1 & Sx2 reaction in detail, and give an example of a chemical reaction respectively (12 pts) o %D